diff options
Diffstat (limited to 'ipu3.cpp')
| -rw-r--r-- | ipu3.cpp | 127 |
1 files changed, 78 insertions, 49 deletions
@@ -44,13 +44,17 @@ public: int start() override; void stop() override {} - int configure(const IPAConfigInfo &configInfo) override; + int configure(const IPAConfigInfo &configInfo, + ControlInfoMap *ipaControls) override; void mapBuffers(const std::vector<IPABuffer> &buffers) override; void unmapBuffers(const std::vector<unsigned int> &ids) override; void processEvent(const IPU3Event &event) override; private: + void updateControls(const IPACameraSensorInfo &sensorInfo, + const ControlInfoMap &sensorControls, + ControlInfoMap *ipaControls); void processControls(unsigned int frame, const ControlList &metadata); void fillParams(unsigned int frame, ipu3_uapi_params *params); void parseStatistics(unsigned int frame, @@ -86,6 +90,68 @@ private: BinaryData aiqd_; }; +/* + * Compute camera controls using the sensor information and the sensor + * v4l2 controls. + * + * Some of the camera controls are computed by the pipeline handler, some others + * by the IPA module which is in charge of handling, for example, the exposure + * time and the frame duration. + * + * This function computes: + * - controls::ExposureTime + * - controls::FrameDurationLimits + */ +void IPAIPU3::updateControls(const IPACameraSensorInfo &sensorInfo, + const ControlInfoMap &sensorControls, + ControlInfoMap *ipaControls) +{ + ControlInfoMap::Map controls{}; + + /* + * Compute exposure time limits by using line length and pixel rate + * converted to microseconds. Use the V4L2_CID_EXPOSURE control to get + * exposure min, max and default and convert it from lines to + * microseconds. + */ + double lineDuration = sensorInfo.lineLength / (sensorInfo.pixelRate / 1e6); + const ControlInfo &v4l2Exposure = sensorControls.find(V4L2_CID_EXPOSURE)->second; + int32_t minExposure = v4l2Exposure.min().get<int32_t>() * lineDuration; + int32_t maxExposure = v4l2Exposure.max().get<int32_t>() * lineDuration; + int32_t defExposure = v4l2Exposure.def().get<int32_t>() * lineDuration; + controls[&controls::ExposureTime] = ControlInfo(minExposure, maxExposure, + defExposure); + + /* + * Compute the frame duration limits. + * + * The frame length is computed assuming a fixed line length combined + * with the vertical frame sizes. + */ + const ControlInfo &v4l2HBlank = sensorControls.find(V4L2_CID_HBLANK)->second; + uint32_t hblank = v4l2HBlank.def().get<int32_t>(); + uint32_t lineLength = sensorInfo.outputSize.width + hblank; + + const ControlInfo &v4l2VBlank = sensorControls.find(V4L2_CID_VBLANK)->second; + std::array<uint32_t, 3> frameHeights{ + v4l2VBlank.min().get<int32_t>() + sensorInfo.outputSize.height, + v4l2VBlank.max().get<int32_t>() + sensorInfo.outputSize.height, + v4l2VBlank.def().get<int32_t>() + sensorInfo.outputSize.height, + }; + + std::array<int64_t, 3> frameDurations; + for (unsigned int i = 0; i < frameHeights.size(); ++i) { + uint64_t frameSize = lineLength * frameHeights[i]; + frameDurations[i] = frameSize / (sensorInfo.pixelRate / 1000000U); + } + + controls[&controls::FrameDurationLimits] = ControlInfo(frameDurations[0], + frameDurations[1], + frameDurations[2]); + + *ipaControls = ControlInfoMap(std::move(controls), controls::controls); +} + int IPAIPU3::init(const IPASettings &settings, const IPACameraSensorInfo &sensorInfo, const ControlInfoMap &sensorControls, @@ -141,53 +207,8 @@ int IPAIPU3::init(const IPASettings &settings, aiqInputParams_.init(); - /* Initialize Controls. */ - ControlInfoMap::Map controls{}; - - /* - * Compute exposure time limits. - * - * Initialize the control using the line length and pixel rate of the - * current configuration converted to microseconds. Use the - * V4L2_CID_EXPOSURE control to get exposure min, max and default and - * convert it from lines to microseconds. - */ - double lineDuration = sensorInfo.lineLength / (sensorInfo.pixelRate / 1e6); - const ControlInfo &v4l2Exposure = sensorControls.find(V4L2_CID_EXPOSURE)->second; - int32_t minExposure = v4l2Exposure.min().get<int32_t>() * lineDuration; - int32_t maxExposure = v4l2Exposure.max().get<int32_t>() * lineDuration; - int32_t defExposure = v4l2Exposure.def().get<int32_t>() * lineDuration; - controls[&controls::ExposureTime] = ControlInfo(minExposure, maxExposure, - defExposure); - - /* - * Compute the frame duration limits. - * - * The frame length is computed assuming a fixed line length combined - * with the vertical frame sizes. - */ - const ControlInfo &v4l2HBlank = sensorControls.find(V4L2_CID_HBLANK)->second; - uint32_t hblank = v4l2HBlank.def().get<int32_t>(); - uint32_t lineLength = sensorInfo.outputSize.width + hblank; - - const ControlInfo &v4l2VBlank = sensorControls.find(V4L2_CID_VBLANK)->second; - std::array<uint32_t, 3> frameHeights{ - v4l2VBlank.min().get<int32_t>() + sensorInfo.outputSize.height, - v4l2VBlank.max().get<int32_t>() + sensorInfo.outputSize.height, - v4l2VBlank.def().get<int32_t>() + sensorInfo.outputSize.height, - }; - - std::array<int64_t, 3> frameDurations; - for (unsigned int i = 0; i < frameHeights.size(); ++i) { - uint64_t frameSize = lineLength * frameHeights[i]; - frameDurations[i] = frameSize / (sensorInfo.pixelRate / 1000000U); - } - - controls[&controls::FrameDurationLimits] = ControlInfo(frameDurations[0], - frameDurations[1], - frameDurations[2]); - - *ipaControls = ControlInfoMap(std::move(controls), controls::controls); + /* Initialize controls. */ + updateControls(sensorInfo, sensorControls, ipaControls); return 0; } @@ -199,7 +220,8 @@ int IPAIPU3::start() return 0; } -int IPAIPU3::configure(const IPAConfigInfo &configInfo) +int IPAIPU3::configure(const IPAConfigInfo &configInfo, + ControlInfoMap *ipaControls) { if (configInfo.sensorControls.empty()) { LOG(IPAIPU3, Error) << "No sensor controls provided"; @@ -208,6 +230,10 @@ int IPAIPU3::configure(const IPAConfigInfo &configInfo) sensorInfo_ = configInfo.sensorInfo; + /* + * Compute the sensor V4L2 controls to be used by the algorithms and + * to be set on the sensor. + */ ctrls_ = configInfo.sensorControls; const auto itExp = ctrls_.find(V4L2_CID_EXPOSURE); @@ -253,6 +279,9 @@ int IPAIPU3::configure(const IPAConfigInfo &configInfo) /* Set AE/AWB defaults, this typically might not belong here */ aiqInputParams_.setAeAwbAfDefaults(); + /* Upate the camera controls using the new sensor settings. */ + updateControls(sensorInfo_, ctrls_, ipaControls); + return 0; } |